2010 Polaris Sportsman 850 Service Manual, Page 229Get this manual
FINAL DRIVE 4Remove the cover plate assembly from the gearcase6Remove the armature plateInspect the armature plate for distortion or other damage (see "AWD Diagnosis")Replace as requiredRemove the female output hub assemblyInspect the thrust bearing (A) for wearInspect the output hub ball bearings, contact surfaces and splines for signs of wear or damageVisually inspect the clutch plate areaIf plates are steel-onsteel, or if the friction material is worn, the assembly must be replacedRemove the ring gear and roll cage from the gearcase as an assembly
NOTE: Thrust bearing (A) located between the two output assemblies is pressed into the clutch pack and is not removableA